85 lines
2.5 KiB
Python
85 lines
2.5 KiB
Python
'''
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A simple web example that allows you to set the LED Strip colour using a colour picker.
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You will need to install Phew for this example to work
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In Thonny select Tools > Manage Packages and search for "micropython-phew"
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'''
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import network
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from pimoroni import RGBLED
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from phew import server, connect_to_wifi, is_connected_to_wifi
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from phew.template import render_template
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import plasma
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# Check and import the SSID and Password from secrets.py
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try:
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from secrets import WIFI_SSID, WIFI_PASSWORD
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if WIFI_SSID == "":
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raise ValueError("WIFI_SSID in 'secrets.py' is empty!")
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if WIFI_PASSWORD == "":
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raise ValueError("WIFI_PASSWORD in 'secrets.py' is empty!")
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except ImportError:
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raise ImportError("'secrets.py' is missing from your Plasma 2350 W!")
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except ValueError as e:
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print(e)
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# Total number of LEDs on our LED strip
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NUM_LEDS = 66
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# APA102 / DotStar™ LEDs
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# led_strip = plasma.APA102(NUM_LEDS, 0, 0, plasma2040.DAT, plasma2040.CLK)
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# WS2812 / NeoPixel™ LEDs
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led_strip = plasma.WS2812(NUM_LEDS, 0, 0, plasma.plasma2040.DAT, color_order=plasma.COLOR_ORDER_BGR)
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# Setup the RGB Led
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led = RGBLED(16, 17, 18)
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last_hex = 0
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# Connect our Tiny FX W to the network
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connect_to_wifi(WIFI_SSID, WIFI_PASSWORD)
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# If we're connected to the network, print out the IP address in the terminal
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if is_connected_to_wifi():
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print("Connected")
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print(network.WLAN(network.STA_IF).ifconfig()[0])
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# Start updating the LED strip
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led_strip.start()
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# Convert our hex value to RGB
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# https://www.30secondsofcode.org/python/s/hex-to-rgb/
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def hex_to_rgb(hex):
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return tuple(int(hex[i:i + 2], 16) for i in (0, 2, 4))
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# We've only got one page in the root so we setup the routing for that request
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# and return the index.html
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@server.route("/", methods=["GET", "POST"])
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def index(request):
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global last_hex
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# If a GET request is made, return the page
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if request.method == 'GET':
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return render_template("html/index.html")
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# If a POST request is made we need to process the information
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# and use that to update the LED colour
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if request.method == 'POST':
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last_hex = request.form["rgbled"]
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value = hex_to_rgb(last_hex[1:])
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led.set_rgb(value[0], value[1], value[2])
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for i in range(NUM_LEDS):
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led_strip.set_rgb(i, value[0], value[1], value[2])
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return render_template("html/index.html")
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# catchall
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@server.catchall()
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def catchall(request):
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return "Not found", 404
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# Run the server!
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server.run()
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